@volume-1
I've been on tirz between 2.5 mg and 5 mg per week, and maintained my goal weight without much to speak of in terms of side effects. I do a split dose (Sun and Wed), which I found early on reduced the few side effects I had. I attribute this to having a more steady concentration of tirz in my system vs peak and valleys of dose variance.
The website below allows you to change your dose and frequency (and even choose between tirz, semaglutide and reta) and shows the concentration of GLP-1 in your body in a graph - again based on dosage and the schedule you choose to inject it.
Everyone reacts differently to GLP-1s, so you might find 1.25 mg weekly works for you while I need 2.5 mg to have the same results. I personally think it's a bit of trial and error.
Just out of curiosity is your 'laziness' about working out - more being motivated or lack of energy when on tirz?
Split dose schedule example

Once a week schedule example

